206344651884 has 48 divisors (see below), whose sum is σ = 579213062400. Its totient is φ = 55852687296.

The previous prime is 206344651859. The next prime is 206344651927. The reversal of 206344651884 is 488156443602.

It is a super-2 number, since 2×206344651884² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64642719 + ... + 64645910.

It is an arithmetic number, because the mean of its divisors is an integer number (12066938800).

Almost surely, 2^206344651884 is an apocalyptic number.

It is an amenable number.

206344651884 is an abundant number, since it is smaller than the sum of its proper divisors (372868410516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206344651884 is a wasteful number, since it uses less digits than its factorization.

206344651884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129288662 (or 129288660 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 51.

The spelling of 206344651884 in words is "two hundred six billion, three hundred forty-four million, six hundred fifty-one thousand, eight hundred eighty-four".